Multifunctional pressure chemical degreasing sewage purification equipment

Abstract

Provided is multifunctional pressure type chemical purification equipment for oily sewage. The equipment comprises a housing (1) and is characterized in that: the housing (1) is provided with at least two mutually independent settling zones (2) and one filtering zone (12); an inlet end of a sewage inlet pipe (3) is connected with a pressure sewage pipe (4) and a dosing opening (9) is provided above the sewage inlet pipe (3); the bottom of the settling zones (2) are respectively provided with a sludge collecting zone; water in a clean water collecting zone (6) is collected by a pure water collecting pipe (7) and gathered at the upper part of the filtering zone (12); one end of an outlet pipe (8) communicates with a water straining zone (13) at the lower part of the filtering zone (12), while the other end is connected with subsequent equipment needing water; a backwashing pipe (15) is installed in the water straining zone (13), the water inlet end of the backwashing pipe (15) is connected with a backwashing water source, and the water outlet end of the backwashing pipe (15) is connected with a backwashing water inlet end of the filtering zone (12). The invention has the characteristics of simple construction, high treating efficiency, low turbidity of filtrated water, convenient manufacture of equipment, economical investment and high cost performance.

Description

technical field [0001] The present invention relates to a kind of sewage treatment equipment, especially a kind of oily sewage treatment equipment. Specifically, it integrates reaction, sedimentation, filtration and mud discharge, and has the advantages of saving chemical input, saving electric power resources, saving investment, reducing Multifunctional pressure type chemical degreasing sewage purification equipment for effluent turbidity. Background technique [0002] At present, the sewage discharged from steel rolling and steelmaking workshops of iron and steel metallurgical enterprises contains a large amount of oil, scale, sediment, suspended solids, etc. These impurities need to be precipitated and filtered by adding chemicals. At present, there are only two independent equipments on the market, the chemical degreaser and the inclined plate precipitator, which use chemical reaction and physical precipitation for degreasing and sedimentation treatment respectively. Th...

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Problems solved by technology

[0004] The purpose of the present invention is to solve the problems that the existing oily sewage treatment equipment has a large footprint, high operating cost and unsatisfactory treatment effect, and to design a backwash multifunctional pressure-type chemical degreasing with a small footprint and low investment Sewage purification equipment

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